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Model of radial plasma-wall interactions in a Hall thruster

Abstract:

Recent achievements on a sheath/presheath/sheath model of the radial interaction of the plasma discharge with the dielectric walls of a Hall thruster are presented. Trapping and thermalization of the secondary electron emission (SEE) depend on the plasma collisionality. The main new contribution is the sheath structure for partial and zero trapping of the SEE. The SEE yield necessary for charge saturation of the sheath increases as collisionality decreases, and the charge-saturation limit is ...

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Host title:
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Publication date:
2002-01-01
ISBN:
9781624101151
Pubs id:
pubs:459969
UUID:
uuid:8acac21a-e143-4141-8d57-ad0c60d9dd46
Local pid:
pubs:459969
Source identifiers:
459969
Deposit date:
2015-02-24

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